Main Difference
The main difference between Heaven and Hell is that the Heaven is a metaphysical concept and Hell is a mythological place of, often eternal, suffering
Heaven
Heaven, or the heavens, is a common religious, cosmological, or transcendent place where beings such as gods, angels, spirits, saints, or venerated ancestors are said to originate, be enthroned, or live. According to the beliefs of some religions, heavenly beings can descend to earth or incarnate, and earthly beings can ascend to Heaven in the afterlife, or in exceptional cases enter Heaven alive.
Heaven is often described as a “higher place”, the holiest place, a Paradise, in contrast to Hell or the Underworld or the “low places”, and universally or conditionally accessible by earthly beings according to various standards of divinity, goodness, piety, faith, or other virtues or right beliefs or simply the will of God. Some believe in the possibility of a Heaven on Earth in a World to Come.
Another belief is in an axis mundi or world tree which connects the heavens, the terrestrial world, and the underworld. In Indian religions, Heaven is considered as Svarga loka, and the soul is again subjected to rebirth in different living forms according to its karma. This cycle can be broken after a soul achieves Moksha or Nirvana. Any place of existence, either of humans, souls or deities, outside the tangible world (Heaven, Hell, or other) is referred to as otherworld.
Hell
Hell, in many religious and folkloric traditions, is a place or state of torment and punishment in an afterlife. Religions with a linear divine history often depict hells as eternal destinations while religions with a cyclic history often depict a hell as an intermediary period between incarnations. Typically these traditions locate hell in another dimension or under the Earth’s surface and often include entrances to Hell from the land of the living. Other afterlife destinations include Heaven, Purgatory, Paradise, and Limbo.
Other traditions, which do not conceive of the afterlife as a place of punishment or reward, merely describe hell as an abode of the dead, the grave, a neutral place located under the surface of Earth (for example, see Sheol and Hades).
Heaven (noun)
The sky, specifically:
Heaven (noun)
The distant sky in which the sun, moon, and stars appear or move; the firmament; the celestial spheres.
Heaven (noun)
The near sky in which weather, flying animals, etc. appear; the atmosphere; the climate.
Heaven (noun)
The abode of God or the gods, traditionally conceived as beyond the sky; especially:
Heaven (noun)
A model displaying the movement of the celestial bodies, an orrery.
Heaven (noun)
The abode of God and of the angels and saints in His presence.
Heaven (noun)
The Mount Olympus.
Heaven (noun)
The afterlife of the blessed dead, traditionally conceived as opposed to an afterlife of the wicked and unjust (compare hell); specifically:
Heaven (noun)
Providence, the will of God or the council of the gods; fate.
Heaven (noun)
The afterlife of the souls who are not sent to a place of punishment or purification such as hell, purgatory, or limbo; the state or condition of being in the presence of God after death.
Heaven (noun)
The afterlife of the blessed dead in other religions and traditions, such as the Pure Land or Elysium.
Heaven (noun)
Any paradise; any blissful place or experience.
Heaven (noun)
A state of bliss; a peaceful ecstasy.
Heaven (verb)
To transport to the abode of God, the gods, or the blessed.
Heaven (verb)
To beatify, enchant, or please greatly.
Heaven (verb)
To beautify, to make into a paradise.
Hell (proper noun)
In various religions, the place where some or all spirits are believed to go after death
“Some religious people believe that all the followers of the other religions go to hell.”
Hell (proper noun)
The place where devils live and where sinners suffer after death
“May you rot in hell!”
Hell (noun)
A place or situation of great suffering in life.
“My new boss is making my job a hell.”
“I went through hell to get home today.”
Hell (noun)
A place for gambling.
Hell (noun)
An extremely hot place.
“You don’t have a snowball’s chance in hell.”
Hell (noun)
Used as an intensifier in phrases grammatically requiring a noun
“I’m as mad as hell and I’m not going to take it any more.”
“What the hell is wrong with you?!”
“He says he’s going home early? Like hell he is.”
Hell (noun)
A place into which a tailor throws his shreds, or a printer his broken type.
Hell (noun)
In certain games of chase, a place to which those who are caught are carried for detention.
Hell (interjection)
Used to express discontent, unhappiness, or anger.
“Oh, hell! I got another parking ticket.”
Hell (interjection)
Used to emphasize.
“Hell, yeah!”
Hell (interjection)
Used to introduce an intensified statement following an understated one; nay; not only that, but.
“[Do it, or, r]est assured, there will be no more Middle Eastern crisis – hell, there will be no more Middle East!”
Hell (verb)
To add luster to, burnish (silver or gold).
Hell (verb)
To pour.
Hell (noun)
a place regarded in various religions as a spiritual realm of evil and suffering, often traditionally depicted as a place of perpetual fire beneath the earth where the wicked are punished after death
“irreligious children were assumed to have passed straight to the eternal fires of hell”
Hell (noun)
a situation, experience, or place of great suffering
“I’ve been through hell”
“he made her life hell”
Hell (interjection)
used for emphasis or to express anger, contempt, or surprise
“who the hell are you?”
“oh, hell—where will this all end?”